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U11vlWIYQ WKMOON <br /> Pump Selection Design ` <br /> •sore <br /> S`l�C;r <br /> Minnesota Pollution Worksheet `'- <br /> Control Agency <br /> 1. PUMP CAPACITY <br /> 1. Pumping to Gravity Distribution <br /> A. Minimum discharge is 10 GPM(15 GPM recommended) GPM <br /> B. Maximum discharge is 45 GPM. <br /> 2. Pressure Distribution-See Pressure Distribution Worksheet <br /> ®vdMaa,ad SSTS O Cakction 9vaem <br /> Required Flow Rate (Line 12 of Pressure Distribution Worksheet) 29 GPM <br /> C. Distribution to: 0Soil Treatment Unit E3Media Fitter 0ATU E3 Other <br /> 2. HEAD REQUIREMENTS <br /> aeatmeM <br /> 3. Elevation Difference 1 14 ft a or <br /> :y <br /> between pump and point of discharge: rte` <br /> 4. Distribution Hem Loss: 5 ft <br /> 6aratim <br /> CMINUM <br /> Additional Head Loss: Ift --- <br /> (due to special equipment,etc.) . <br /> Distribution bead Loss Friction Low in Plasdc Pipe per 100 ft <br /> Gravity Distribution-Oft C=130 <br /> Pressure Distribution based on Minimum Average Head NmWnal Pipe Diameter <br /> Value on Pressure Distribution Worksheet: Fkpw Rate 1 114 1% 2 3 <br /> Mnimum Avenage Hand Distribution Head Lcros <br /> 1ft 5ft 10 9.11 3.06 1:27 0.31 <br /> 2ft Eft 12 12.77 4.31 1.78 0.44 - <br /> 5ft loft 14 16,89 6.74 2.36 0.58 <br /> Friction Loss 16 - 7.35 3.03 0.75 0.10 <br /> 5. A.Suppty Pipe Diameter. 2.00 inches 1 9.14 3.78 0,93 0.13; <br /> 20 11.11 4.68 1.13 0.16 <br /> 25 - 16.79 6.92 1.71 0.24 <br /> B. Y Pipe Length: 147 Feet 30 -- 1 - 9.691 2.39 0.33 <br /> NOTE:IF system is an Individual subsurface sewage treatment system, <br /> 35' - 12.901 3.18 0.44 <br /> complete steps 6,7 acrd 8. If system is a Collection System,skip steps 6, 40 -- - 16.52 4.07 0.57 <br /> 7 and 8 and go to Step 9. 45 -- 6.07 0.70 <br /> 6. Based on Friction Loss in Plastic Pipe per 100ft from Table I: 50 - - -- 6.16 0.86 <br /> 55` _ 7.35 '1.02 <br /> Friction Loss- 2.23 ft Per 100ft of pipe 60 --- --- -- 8.63 1.20 <br /> 65 - 10.01 1.38 <br /> 7. Determine Equivalent Pipe Length from pump discharge to soil dispersal 70 111.481 1.60 <br /> area discharge point. Estimate by adding 25%to supply pipe length for <br /> fitting loss. Supply Pipe Length(5.8) X 1.25-Equlvolent Pipe Length <br /> 147' ft x 1.25 183.T5 ft <br /> a. Calculate Supply Friction Loss by multiplying Friction Laic Per 100ft (Line 6)by the Equivalent Pipe Length (Line 7)and divide by 100. <br /> Supply Friction loss= <br /> 2.23' ft per 100ft x 183.75 ft 100 = 4.09 it <br />